Force and spray pump



y G, W. SMITH. FORGE AND SPRAY PUMP.

(No Model.)

Patented Sept THE Nonms PETERS co, PMoTo-Lrruo.. WASHINGTON, D, c.

UNITED STATES PATENT OFFICE.

GEORGE WELLS SMITH, or UNION oirv, INDIANA.

FORCE AND SPRAY PUMP.

SPECIFICATION forming part of Letters Patent N o. 568,462, datedSeptember 29, 1896.

. Application filed September 12, 1895. Serial No. 562,321. (No model.)

To L7/Z whom it may concern:

Be it known that I, GEORGE WELLS SMITH, a citizen of the United States,residing at Union City, in the county of Randolph and State of Indiana,have invented certain newv and useful Improvements in Force and SprayPumps; and I do hereby declare the following to be a full, clear, andexact description either a spray or a solid stream, and which.

may be used for distributing paris-green upon plants or trees.

With these and such other ends in view as pertain to my invention thefirst part of the invention consists in the combination, with astand-pipe which carries the nozzle and a plunger operating in aforcing-cylinder, of a floatable air-tube loosely arranged within thestand-pipe and adapted to be charged with air to render it buoyant, saidfloatable tube being provided with a weighted closed upper end, and saidfloatable tube being of' less diameter than the stand-pipe within whichit is disposed, so as to permit of the free iiow of water through thestand-pipe.

The invention further consists in the com-v bination, with an ordinarytapered nozzle, of

a spray-nozzle attachment consisting of a` conical bodyhaving itssmaller end threaded struction and arrangement of parts which will behereinafter fully described and claimed. To enable others to understandmy invention, I have illustrated the preferred embodiment thereof in theaccompanying drawings, forming a part of this specification, and inwhich- Figure lis an elevation, partly in section, of a force-pumpembodying my invention. Fig. 2 is a detail sectional view of the lower4part of the pump, showing the iioatable air-tube therein. Fig. 3 is adetailed View of the attachable spray-nozzle, and Fig. fl is a view ofthe spray-nozzle applied to the ordinary nozzle. Fig. 5 is a detail viewof part of the forcing-cylinder, the piston, and the agitator attachedto the piston; and Fig.,6 is a detail view of the agitator detachedfromthe piston.

Referring to the drawings, in which like letters of reference denotecorresponding parts in all the figures, A designates the stand-pipe,which may be made of an ordinary piece of tubing in one or more lengthssuitably attached together. To the lower end of this stand-pipe A isscrewed an elbow B, which is lined interiorly with a soft-metal liningb, preferably of copper, to form a seat for the ball check-valve C, thelatter being arranged to play loosely in the elbow. This soft-metallining b serves to contract the internal diame-Y ter of the end of theelbow where it is coupled to the piston-cylinder, and the valve C is ofsuch diameter that it works loosely in the elbow and will t to thereduced seat formed by the soft-metal lining, thus closing theconnection between the piston-cylinder and the stand-pipe. When thevalve is forced away from its seat by the inflow of liquid, it leavessufficient space between its surface and the elbow for the liquid topass freely by and around it. 'To the other end of this elbow is screweda nipple D, which connects to the casting E, the latter having astrainer d at its lower end and provided Withahinged checkvalve e. Tothe upper end of this foot-casting E is screwed the pump-barrel F, inwhich operates the packed piston F, the latter havin g a piston-rod fsuitably secured to the same. This piston-rod f extends a suitabledistance upwardly alongside of the stand-pipe, and the 'upper end ofthis rod f is pivoted toa handlever G, which is provided with a handle gfor its convenient manipulation, This lever 'G has a forked end whichstraddles or embraces a collar H, that is fitted on the standpipe, andthis collar is adjustably clamped to the stand-pipe by means of theset-screws 7L, two of which screws pass through the forked end of thelever and through threaded openings in the collar to bind against thestandpipe, whereby the two screws serve the twofold purpose of formingthe fulcrum for the hand-lever and of assisting in clamping the collaradjustably to the stand-pipe.

The upper end of the stand-pipe A is closed by means of the head or capI, in an opening in which is fitted the reducer-pipe J. The inner end ofthis reducerpipe is extended a suitable distance into the stand-pipe,and the inner end of said pipe .I is closed in a suitable way andprovided with the openings j, through which the liquid may pass from thestand-pipe into the reducer-pipe. To the upper end of said reducer-pipeis coupled a section or short length of hose or tubing K, and to theother end of the hose or tubing K is coupled the ordinary nozzle L. Thisnozzle is adapted to throw or project a solid stream of liquid when thepiston is operated in the barrel; but by attaching my spray-nozzle M tothe ordinary nozzle L the stream may be changed into a spray and thisspray may be of regulated fmeness.

To adapt my spraynozzle to be used on the nozzle L, the latter has anexternal screwthread Zcut thereon at an intermediate point of itslength, and to this threaded part of the nozzle L is screwed the innerthreaded end of the cylindrical spray-nozzle. The ordinary nozzle L ismade of tapering form, as shown, while the spray-nozzle is madecylindrical, or substantially so, in order that when the spray-nozzle isscrewed to the ordinary nozzle a-n air-chamber M' is formed by andbetween the tapered ordinary nozzle L and the cylindrical spray-nozzleM. The outer or free end of the ordinary nozzle L terminates within thespray-nozzle and discharges through the air-chamber M', and thisspraynozzle is provided with a conical head m, in which is produced acentral outlet-orifice m', the axis of which is in alinement with theaxis of the ordinary nozzle, whereby the stream issuing from the nozzleL and passing through the centrally-perforated head in the nozzle M isconverted into a spray. The fineness of this spray may be regulated bythe adjusuble rod or stem N, which has a straight part slidablysupported on the outside of the nozzle M, and bent or provided with anangular or curved arm n, that is eX- tended or projected inward towardthe central orifice in the head of the spray-nozzle, as shown. Thisadjustable regulator-rod is equipped with a handle m, which may begrasped for the purpose of adjusting the rod, and by drawing said rodbackward so that its angular or bent end will approach the centralorifice m the rod is adapted to break up the spray and regulate thefineness thereof according to the position of the rod with relation tothe diseharge-oriice m inthe head of the spray-nozzle.

In order to regulate the flow of the liquid through the stand-pipe so asto produce a steady uniform stream or current, I have devised thefloatable air-tube O, which consists of a suitable length of tubing ofless diameter than the standepipe. This iioatable airtube has its upperend closed and weighted by the cap or head o, while the lower end ofsaid tube is open for the free ingress of air. This tube O is fittedloosely within the standpipe, and it is adapted to play freely thereinin a vertical direction. SaidV floatable airtube is adapted to be liftedby the pressure of the outgoing stream from the barrel of the pump, andits weight pressing upon the column of liquid in the stand-pipe insuresuniformity and steadiness in the stream or column of liquid. The upwardmovement of the iloatable air-tube is limited by its upper end abuttingagainst the lower end of the fixed reducer-pipe, while the descent ofthe air-tube O is limited by means of the screw O', which is supportedin theV elbow B bctween the air-tube and the ball-valve, so that theair-tube when it is lowered will not interfere with the free action ofthe ball-valve.

My pump may be used for sprinkling parisgreen upon the trees, growingplants, &c., and when the pump is to be used for this purpose thefoot-casting D and the barrel E are to be placed in a vessel containingthe solution to be sprayed. To prevent the solution from settling andforming a sediment, Ihave provided the agitator P, which is formed ofsteel wire bent to form the upright shanks and the angular feet,'(indica-ted by the letters pp', respectively, in Fig. G.) The upperends of the shanks p are iitted in a clamp P, which is fastened to thepiston-rod f, and the legs of the agitator straddle the pump-barrel andextend well down toward the bottom of the receptacle, so that as thepiston and rod are operated to force the liquid through the pump-barreland stand-pipe the agitator is reciprocated with the piston to stir upthe contents of the receptacle.

It is thought that the operation and advantages of my invention will bereadily understood from the foregoing description, taken in connectionwith the drawings.

I am aware that changes in the form and proportion of parts and in thedetails of construction herein shown and described as an embodiment ofmy invention may be made by askilled mechanic without departing from theprinciple of my invention.

IVhat I claim as new, and desire to secure by Letters Iatent, is-

l. The combination with a stand-pipe, and a piston-cylinder, of theelbow B coupled to the cylinder and stand-pipe and having a seat, aball-valve iitted in said elbow, a floatable air-pipe arranged looselyin the standpipe, a stop-screw O fitted in the elbow at a IOO IIO

and a piston-rod, of the agitator bent from a single length of Wire toembrace the pistonrod and form the diverging branches having the angularfeet; the head of said agitator being connected to the piston-rod byaolamp, and the diverging branches and feet of the agitator arranged toplay on opposite sides of I5 the piston-cylinder, as set forth. v

In testimony whereof I aiix my signature in presence of two Witnesses.

GEORGE WELLS SMITH. Witnesses:

O O. GORDON, P. A. TAYLOR.

